Methods and apparatus to improve runtime performance of software executing on a heterogeneous system

A non-transitory computer readable storage medium comprising instructions which, when executed, cause at least one processor to at least:

• collect a performance characteristic of a heterogeneous system associated with a compiled version of a block of code at a first runtime, the compiled version executed according to a function designating successful execution of the compiled version on the heterogeneous system, the heterogeneous system including a first processing element and a second processing element different than the first processing element;
• determine a performance delta based on the performance characteristic and the function;
• and
• prior to a second runtime, adjust a cost model of the first processing element based on the performance delta, the adjusted cost model to cause a reduction in the performance delta to improve runtime performance of the heterogeneous system.

An apparatus to improve runtime performance of software executing on a heterogeneous system, the apparatus comprising:

• means for collecting, the means for collecting to collect a performance characteristic of a heterogeneous system associated with a compiled version of a block of code at a first runtime, the compiled version executed according to a function designating successful execution of the compiled version on the heterogeneous system, the heterogeneous system including a first processing element and a second processing element different than the first processing element;
• means for analyzing, the means for analyzing to determine a performance delta based on the performance characteristic and the function;
• and
• means for generating models, the means for generating models to, prior to a second runtime, adjust a cost model of the first processing element based on the performance delta, the adjusted cost model to cause a reduction in the performance delta to improve runtime performance of the heterogeneous system.

A method to improve runtime performance of software executing on a heterogeneous system, the method comprising:

• collecting a performance characteristic of the heterogeneous system associated with a compiled version of a block of code at a first runtime, the compiled version executed according to a function designating successful execution of the compiled version on the heterogeneous system, the heterogeneous system including a first processing element and a second processing element different than the first processing element;
• determining a performance delta based on the performance characteristic and the function;
• and
• prior to a second runtime, adjusting a cost model of the first processing element based on the performance delta, the adjusted cost model to cause a reduction in the performance delta to improve runtime performance of the heterogeneous system.